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Using wireless geosensor networks (WGSN), sensor nodes often monitor a phenomenon that is both continuous in time and space. However, sensor nodes take discrete samples, and an analytical framework inside or outside the WSN is used to analyze the phenomenon.. In both cases, expensive communication is used to stream a large number of data samples to other(More)
In presenting this thesis in partial fulfillment of the requirements for an advanced degree at the University of Maine, I agree that the library shall make it freely available for inspection. I further agree that permission for " fair use " copying of this thesis for scholarly purposes may be granted by the Librarian. It is understood that any copying or(More)
Knowledge-based systems for medicine have enjoyed minimal success in developing countries as end-user systems. The reasons for this are complex. As funding agencies understandably tend to err on the side of caution, and knowledge-based systems are still (despite an almost 40 year history) seen as a new and untried technology, few have been implemented. Of(More)
Maine in 1999. Her research interests relate to modeling geospatial semantics, including event-based modeling for dynamic GIS and reasoning about spatio-temporal phenomena over multiple granularities. She is also interested in ontologies and their role for information system design. among others. She serves also on the editorial board of the GIS section of(More)
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